Toner and developer providing offset lithography print quality
    22.
    发明授权
    Toner and developer providing offset lithography print quality 有权
    提供胶版印刷质量的墨粉和显影剂

    公开(公告)号:US06242145B1

    公开(公告)日:2001-06-05

    申请号:US09520437

    申请日:2000-03-07

    IPC分类号: G03G908

    摘要: A developer of a mixture of carrier particles and toner particles containing at least one binder, at least one colorant, and optionally one or more additives, has a triboelectric value of from 35 to 60 &mgr;C/g, a charge distribution (Q/D) of from −0.5 to −1.0 fC/&mgr;m and the distribution is substantially unimodal and possesses a peak width of less than 0.5 fC/&mgr;m, preferably less than 0.3 fC/&mgr;m, and a conductivity of the developer ranges from 1×10−11 to 10×10−15 mho/cm as measured at 30 V. The carrier particles of the developer preferably have an average particle diameter of 65 to 90 microns and a size distribution wherein 2.0% or less of a total number of carrier particles have a size less than 38 micrometers. The ratio of carrier volume median diameter to toner volume median diameter is about 10:1. The developer finds particular use in devices utilizing hybrid scavengeless development. Use of a developer with such properties in a hybrid scavengeless development apparatus enables images to be achieved with properties similar to that achieved in offset lithography.

    摘要翻译: 载体颗粒和含有至少一种粘合剂,至少一种着色剂和任选的一种或多种添加剂的调色剂颗粒的混合物的显影剂的摩擦电压值为35至60μC/ g,电荷分布(Q / D) 为-0.5至-1.0 fC / mum,分布基本上为单峰,峰值宽度小于0.5 fC / mum,优选小于0.3 fC / mum,显影剂的电导率为1×10-11至10x10 -15mho / cm。显影剂的载体颗粒优选具有65至90微米的平均粒径,其中载体颗粒总数的2.0%或更小的尺寸小于38的尺寸分布 微米。 载体体积中值直径与调色剂体积中值直径的比例为约10:1。 开发人员发现在使用混合型无风险开发的设备中特别有用。 在具有这种特性的显影剂中使用具有这种特性的混合扫描装置能够以与胶版印刷法相似的性质来实现图像。

    Carrier and developer providing offset lithography print quality
    23.
    发明授权
    Carrier and developer providing offset lithography print quality 有权
    载体和显影剂提供胶印印刷质量

    公开(公告)号:US06177221B1

    公开(公告)日:2001-01-23

    申请号:US09520358

    申请日:2000-03-07

    IPC分类号: G03G9113

    摘要: A carrier for a developer composition includes a steel core having a shape factor of 6 or more coated with a coating at a coating weight of from 0.1 to 3.0% by weight of a total core weight. The coating is most preferably polymethyl methacrylate. The steel core also preferably has an average particle diameter of 70 to 89 micrometers and a size distribution wherein 1.5% or less of a total number of carrier particles have a size less than 38 micrometers. The carrier is preferably used in conjunction with toner particles to form a developer for particular use in devices utilizing hybrid scavengeless development. Use of a carrier in such a developer in a hybrid scavengeless development apparatus enables images to be achieved with properties similar to that achieved in offset lithography.

    摘要翻译: 用于显影剂组合物的载体包括具有6或更大的形状因子的钢芯,其涂覆的涂层重量为总芯重量的0.1至3.0重量%。 涂层最优选为聚甲基丙烯酸甲酯。 钢芯也优选具有70至89微米的平均粒径和尺寸分布,其中载体颗粒总数的1.5%或更小具有小于38微米的尺寸。 载体优选与调色剂颗粒结合使用以形成特别用于利用混合无花开发的装置的显影剂。 在这种显影剂中使用载体在混合清扫开发装置中可以实现具有类似于胶印光刻中所获得的图像的图像。

    Method of making toner compositions
    26.
    发明授权
    Method of making toner compositions 失效
    制备调色剂组合物的方法

    公开(公告)号:US5716752A

    公开(公告)日:1998-02-10

    申请号:US843883

    申请日:1997-04-17

    IPC分类号: G03G9/08 G03G9/097 G03G9/083

    CPC分类号: G03G9/09708 G03G9/0815

    摘要: A process for decreasing toner adhesion and decreasing toner cohesion, which comprises adding a component of magnetite, a metal, a metal oxide, a metal carbide, or a metal nitride to the surface of a toner comprised of resin, wax, and colorant, and wherein toner surface additives are blended with said toner, and wherein said component is permanently attached to the toner surface by the injection of said component in a fluid bed milling device during the size reduction process of said toner contained in said device, and where the power imparted to the toner to obtain said attachment is from equal to, or about above 5 watts per gram of toner.

    摘要翻译: 一种降低调色剂附着力和降低调色剂内聚力的方法,其包括将磁铁矿,金属,金属氧化物,金属碳化物或金属氮化物的组分添加到由树脂,蜡和着色剂组成的调色剂的表面,以及 其中调色剂表面添加剂与所述调色剂共混,并且其中所述组分通过在包含在所述装置中的所述调色剂的尺寸减小过程期间通过在流化床研磨装置中注入所述组分永久地附着到调色剂表面,并且其中功率 赋予调色剂以获得所述附着物等于或约高于5瓦/克调色剂。

    Developer dispense for enhanced stability in xerographic printing systems
    28.
    发明授权
    Developer dispense for enhanced stability in xerographic printing systems 有权
    显影剂分配用于提高静电印刷系统的稳定性

    公开(公告)号:US07561834B2

    公开(公告)日:2009-07-14

    申请号:US11505088

    申请日:2006-08-16

    申请人: Scott M. Silence

    发明人: Scott M. Silence

    IPC分类号: G03G15/06

    摘要: A two dispenser system is used to replenish developer and toner in an electrostatic marking system. This two dispenser system replenishes toner and developer in a more accurate way since each of the dispensers are individually controlled and operated. Better quality prints and less waste is provided over extended usage periods.

    摘要翻译: 二分配器系统用于在静电打标系统中补充显影剂和调色剂。 这两个分配器系统以更精确的方式补充调色剂和显影剂,因为每个分配器被单独控制和操作。 在更长的使用期内提供更好的打印质量和更少的浪费。

    Color-blind melt flow index properties for toners
    30.
    发明授权
    Color-blind melt flow index properties for toners 有权
    调色剂的色盲熔体流动指数特性

    公开(公告)号:US06406822B1

    公开(公告)日:2002-06-18

    申请号:US09671997

    申请日:2000-09-29

    IPC分类号: G03G908

    摘要: At least three differently colored toners, designed for use together in forming a color image in an image developing device, have substantially the same melt flow index value. By substantially matching the melt flow index values of at least three toners of a set of toners, it has been found that the resultant color image has an overall excellent image quality, i.e., an excellent overall gloss level without any gloss banding. The toners may be made to have substantially the same melt flow index value in a carefully controlled process that includes forming a single toner by feeding at least one binder and at least one colorant into a mixing device to form a mixture, upon exit of the mixture from the mixing device, measuring a rheology property of the mixture with at least one monitoring device, and comparing the measured rheology property to a target property range that the measured rheology property must be within in order for the single toner to achieve the desired melt flow index value, wherein if the measuring indicates that the rheology property is outside of the target property range, feed amounts of the at least one binder or of the at least one colorant into the mixing device are adjusted, grinding the mixture, optionally together with a portion of one or more external additives to be added to the mixture, classifying the ground mixture, mixing the classified mixture with one or more external surface additives to obtain the single toner having the desired melt flow index value, and repeating the steps for each additional differently colored toner.

    摘要翻译: 设计用于在图像显影装置中形成彩色图像一起使用的至少三种不同颜色的调色剂具有基本上相同的熔体流动指数值。 通过基本上匹配一组调色剂的至少三种调色剂的熔体流动指数值,已经发现所得到的彩色图像具有总体优异的图像质量,即没有任何光泽条纹的优异的整体光泽度。 调色剂可以在仔细控制的方法中具有基本上相同的熔体流动指数值,包括通过在混合物出口时将至少一种粘合剂和至少一种着色剂进料到混合装置中形成混合物来形成单一调色剂 从混合装置测量混合物与至少一个监测装置的流变性质,并将所测量的流变性能与所测量的流变性能必须在其中的目标性能范围进行比较,以使单个调色剂达到所需的熔体流动 指数值,其中如果测量表明流变性能在目标特性范围之外,则调节至少一种粘合剂或至少一种着色剂进入混合装置的进料量,任选地与 一部分添加到混合物中的外部添加剂,将研磨的混合物分级,将分级的混合物与一个或多个外表面 添加剂以获得具有所需熔体流动指数值的单一调色剂,并且对于每种附加的不同颜色的调色剂重复步骤。